Show that 0-58200-48826-5 is a valid UPC number

Can someone explain the elimination method to me for this problem?

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

1- identificar select the category that corresponds to each term. january 23 11: 59 pm unlimited attempts remaining grade settings 276-279 vocabulary list modelo fiesta quinceañera casada adolescencia viudo juventud navidad niñez vejez aniversario de bodas divorciado madurez cumpleaños soltera